title: The cetylpyridinium bromide decontamination of sputum and its influence on the niacin test.
mesh_terms: D002594:Cetylpyridinium; D002710:Chlorhexidine; D005189:False Positive Reactions; D006801:Humans; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification*; D009539:Nicotinic Acids; D011726:Pyridinium Compounds; D013048:Specimen Handling; D013183:Sputum / Q000382:microbiology*
chemical_list: D009539:Nicotinic Acids; D011726:Pyridinium Compounds; D002594:Cetylpyridinium; D002710:Chlorhexidine